Synthesis, Characterization and Photovoltaic Performance of Novel Iron (Iii) Resorcinol- Functionalized Phenanthroline Sensitizers for Solar Cell Application

Misganaw, Wudneh

dc.contributor.author	Misganaw, Wudneh
dc.date.accessioned	2026-08-21T06:29:37Z
dc.date.available	2026-08-21T06:29:37Z
dc.date.issued	2026-06
dc.identifier.uri	http://ir.bdu.edu.et/handle/123456789/17061
dc.description.abstract	Dye-sensitized solar cells (DSSCs) have attracted significant attentions as a cost-effective and environmentally friendly alternative to conventional silicon-based photovoltaics. However, the widespread application of current high performance DSSCs limited by the high cost and scarcity of standard ruthenium-based sensitizers. Consequently, developing sensitizers using earth-abundant, non-toxic metals like iron is a promising strategy for sustainable energy conversion. In this study, two novel iron (III) complexes, Na9[Fe(R)6] and Na5[Fe(phen)(R)4] (where R=resorcinolate and phen=1,10-phenanthroline), were synthesized as potential sensitizers. The structures and optical properties of the complexes were investigated using UV–Vis, FT-IR, Thermogravimetric Analysis (TGA), and Cyclic Voltammetry CV). The optical and electrochemical energy gaps were determined to assess the suitability of the dye for solar energy conversion. Furthermore, DSSCs were fabricated using these complexes, and their photovoltaic performance was evaluated through current -voltage characterization and electrochemical impedance spectroscopy. The device sensitized with Na9[Fe(R6 ] and Na5[Fe(phen)(R)4 ] exhibited an enhanced performance, achieving a short circuit current density of 31.67 μAcm-2, 33.33 μAcm-2, open circuit voltage of 387mV, 470mV, fill factor of 32.01 %, 25.23 %, and performance efficiency of 3.924%, 3.952%, respectively. These results demonstrate the potential of functionalized iron(III) complexes as low-cost sensitizers for DSSC applications.	en_US
dc.language.iso	en_US	en_US
dc.subject	Chemistry	en_US
dc.title	Synthesis, Characterization and Photovoltaic Performance of Novel Iron (Iii) Resorcinol- Functionalized Phenanthroline Sensitizers for Solar Cell Application	en_US
dc.type	Thesis	en_US